I don't even think they're good enough back ups thats my problem, they're all likely to make 20+ appearances in starts and subs and I wouldn't trust one of them to change a game or do a really good job from the start.
I like Poveda but he is very much all fancy skill and hoping for best, love his effort but for me he is 2 years off being a good player.
Forshaw.....just no, I liked him in Championship and would have been fine with him in our squad but 2 years out I just don't see it, I wasn't convinced he was PL quality pre-injury.
Costa....Like you say, turns up one game with a good goal or 2 then disappears for the rest.
Roberts....I really want to like him but I just don't see it, he isn't a good goalscorer, he isn't very creative, he isn't quick, doesn't hold it up......I'm happy for him to be in the squad and be an option but thats about it.
Honestly watching that friendly Summerville looked more threatening than Costa or Poveda and him and Dean linked up better than any of our attackers in the first 45